CD RW / DVD Drive problems

I have a Mat*!@:a CDRW CW8121 Combi DVD CDRW drive in my laptop. Running XP SP1. It will read DVDs no problem and sometimes a CD that is is a game. It will not read Audio CDs or anything that I have made using Roxio even though other computers can read these CDs no problem.

Do you think that this a software problem or hardware.

I have uninstalled the drive from laptop and reinstalled it and have updated the drivers.